Prosoft-technology MVI69-ADM Manual do Utilizador Página 166

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Application Development Function Library - ADM API MVI-ADM 'C' Programmable
Developer's Guide 'C' Programmable Application Development Module
Page 166 of 342 ProSoft Technology, Inc.
February 20, 2013
ADM_DBXNOR_Byte
Syntax
int ADM_DBXNOR_Byte(ADMHANDLE adm_handle, int offset, unsigned char bval)
Parameters
adm_handle
Handle returned by previous call to ADM_Open
offset
Byte offset into database
bval
Bit mask to be XNORed with the byte at offset
Description
This function XNORs a byte in the database with a byte-long bit mask.
adm_handle must be a valid handle returned from ADM_Open.
Return Value
ADM_SUCCESS
No errors were encountered
ADM_ERR_NOACCESS
adm_handle does not have access
ADM_ERR_MEMORY
database is not allocated
ADM_ERR_REG_RANGE
offset is out of range
Example
ADMHANDLE adm_handle;
int offset;
unsigned char bval = 0x55;
ADM_DBXNOR_Byte(adm_handle, offset, bval);
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